阅读说明：本技术 一种用于餐厨垃圾渗滤液的管道加热装置 (A pipeline heating device for kitchen garbage filtration liquid ) 是由 杜港 甄胜利 齐长青 陈君 陈雨 杨庆彬 倪哲 于 2020-12-24 设计创作，主要内容包括：本发明公开了一种用于餐厨垃圾渗滤液的管道加热装置,包括分配器、调节阀和加热管；分配器包括多条水平设置的分配管,多条分配管的一端通过连接件与调节阀的出口连接,另一端置于加热管内,调节阀的入口与蒸汽供给装置连接；加热管的一端与连接件连接,另一端连接有缓冲管,加热管下部与渗滤液供给装置连接；每条分配管沿管路轴向均布有多个向后、向前倾斜的第一出气孔和第二出气孔,蒸汽通过第一出气孔和第二出气孔进入加热管内对渗滤液加热。本发明结构简单,占地面交小,通过利用分配器,使高温蒸汽在加热管内形成湍流,使蒸汽和渗滤液可以充分融合,提高了餐厨垃圾渗滤液的加热效率。(The invention discloses a pipeline heating device for kitchen waste leachate, which comprises a distributor, an adjusting valve and a heating pipe, wherein the distributor is provided with a water inlet and a water outlet; the distributor comprises a plurality of horizontally arranged distribution pipes, one ends of the distribution pipes are connected with the outlets of the regulating valves through connecting pieces, the other ends of the distribution pipes are arranged in the heating pipes, and the inlets of the regulating valves are connected with the steam supply device; one end of the heating pipe is connected with the connecting piece, the other end of the heating pipe is connected with the buffer pipe, and the lower part of the heating pipe is connected with the percolate supply device; each distribution pipe is provided with a plurality of first air outlet holes and second air outlet holes which incline backwards and forwards along the axial direction of the pipeline, and steam enters the heating pipe through the first air outlet holes and the second air outlet holes to heat the percolate. The kitchen waste leachate heating device is simple in structure and small in floor area, high-temperature steam forms turbulence in the heating pipe by using the distributor, the steam and the leachate can be fully fused, and the heating efficiency of the kitchen waste leachate is improved.)

1. A pipeline heating device for kitchen waste leachate is characterized by comprising a distributor, a regulating valve and a heating pipe;

the distributor comprises a plurality of horizontally arranged distribution pipes, one ends of the distribution pipes are connected with the outlets of the regulating valves through connecting pieces, the other ends of the distribution pipes are arranged in the heating pipes, and the inlets of the regulating valves are connected with a steam supply device;

one end of the heating pipe is connected with the connecting piece, the other end of the heating pipe is connected with a buffer pipe, and the lower part of the heating pipe is connected with a percolate supply device;

each distribution pipe is evenly provided with a plurality of first air outlet holes and second air outlet holes which incline backwards and forwards along the axial direction of the pipeline, and steam enters the heating pipe through the first air outlet holes and the second air outlet holes to heat percolate.

2. The pipe heating device according to claim 1, wherein the connecting member comprises a flange, a plurality of preformed holes connected with the distribution pipe are arranged in the middle of the flange in a cross manner, and a plurality of bolt holes are symmetrically formed in the outer edge of the flange;

many the one end of distributing pipe with the preformed hole of ring flange is connected through the welding mode, the one end of heating pipe pass through the bolt with the ring flange the bolt hole connection of the export of governing valve.

3. The pipe heating apparatus according to claim 1, wherein the front half section of each of the distribution pipes is circumferentially provided with a plurality of first outlet holes inclined backward in the axial direction of the pipe, and the rear half section is circumferentially provided with a plurality of second outlet holes inclined forward in the axial direction of the pipe;

steam enters the heating pipe through the first air outlet and the second air outlet to heat the percolate.

4. The pipe heating apparatus according to claim 3, wherein a hollow interlayer is provided in the buffer tube, the hollow interlayer is connected to the regulating valve through a bypass line, and the hollow interlayer is provided inward with a third air outlet hole inclined forward;

and a third check valve and a second steam manual ball valve are arranged on the bypass pipeline, and steam enters the hollow interlayer of the buffer tube after passing through the regulating valve, the second steam manual ball valve and the third check valve.

5. The pipe heating apparatus of claim 4, wherein the first and second outlet holes have a hole diameter of not less than 3mm, and the third outlet hole has a hole diameter of not less than 6 mm;

the inclination angles of the first air outlet hole, the second air outlet hole and the third air outlet hole are not less than 30 degrees.

6. The pipe heating apparatus according to claim 1, wherein the steam supply means is connected to the regulating valve through a steam supply line;

the steam supply pipeline is followed steam supply device arrives the governing valve direction is equipped with the manual ball valve of first steam, the electronic ball valve of steam, steam thermometer, steam manometer and first check valve in proper order.

7. The pipe heating device according to claim 1, characterized in that the percolate supply device is connected to the heating pipe by means of a percolate supply line;

the percolate supply pipeline is sequentially provided with a percolate inlet pneumatic knife gate valve, a percolate inlet manual knife gate valve, a percolate inlet pressure gauge, a percolate inlet temperature gauge and a second check valve along the direction from the percolate supply device to the heating pipe.

8. The pipe heating apparatus of claim 1, further comprising a controller and a temperature sensor;

the temperature sensor is arranged on an outlet pipeline of the buffer tube, the input end of the controller is connected with the temperature sensor, and the output end of the controller is connected with the regulating valve;

the lower limit value of the temperature sensor is not lower than 60 ℃, and the upper limit value of the temperature sensor is not higher than 80 ℃.

9. The pipe heating apparatus of claim 7, wherein the regulating valve is an electrically operated regulating valve.

10. The pipeline heating device according to claim 7, wherein a leachate outlet manual knife valve, a leachate outlet pneumatic knife gate valve, a leachate outlet pressure gauge and a leachate outlet temperature gauge are sequentially arranged on the outlet pipeline of the buffer tube.

Technical Field

The invention relates to the technical field of kitchen waste treatment, in particular to a pipeline heating device for kitchen waste leachate.

Background

Kitchen waste, commonly known as swill, also known as hogwash and swill, is mainly generated in catering industry, dining halls and families, and mainly refers to domestic sewage and waste which is easy to rot and deteriorate and is generated by eating behaviors of people. Compared with other garbage, the garbage has the characteristics of high water content, high grease content and high inorganic salt content. The kitchen waste accounts for a large proportion of the municipal domestic waste, so the kitchen waste is a high-quality harmful organism culture medium which is a byproduct of human beings, is very easy to breed mosquito, fly and germ spontaneously, generates toxic, stink and combustible gas, and brings fire-fighting hidden dangers and problems of environmental protection and public health. Illegal utilization of the swill pig and the swill oil of the kitchen waste has great harm, and the kitchen waste leachate is rich in animal oil and vegetable oil, so that the kitchen waste leachate can be separated out and can be used as an industrial raw material and a raw material of biodiesel. The kitchen waste leachate needs to be heated to a certain temperature in the grease separation process, and how to efficiently heat the kitchen waste leachate and save the occupied area achievement process technology becomes a difficult problem.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a pipeline heating device for kitchen waste leachate.

The invention discloses a pipeline heating device for kitchen waste leachate, which comprises a distributor, an adjusting valve and a heating pipe, wherein the distributor is provided with a water inlet and a water outlet;

the distributor comprises a plurality of horizontally arranged distribution pipes, one ends of the distribution pipes are connected with the outlets of the regulating valves through connecting pieces, the other ends of the distribution pipes are arranged in the heating pipes, and the inlets of the regulating valves are connected with a steam supply device;

one end of the heating pipe is connected with the connecting piece, the other end of the heating pipe is connected with a buffer pipe, and the lower part of the heating pipe is connected with a percolate supply device;

and a plurality of air outlet holes which are inclined forwards and backwards are uniformly distributed on each distribution pipe along the axial direction of the pipeline, and steam enters the heating pipe through the air outlet holes on the distribution pipes to heat the percolate.

As a further improvement of the invention, the connecting piece comprises a flange plate, a plurality of preformed holes connected with the distribution pipe are arranged in the middle of the flange plate in a cross manner, and a plurality of bolt holes are symmetrically arranged on the outer edge of the flange plate;

many the one end of distributing pipe with the preformed hole of ring flange is connected through the welding mode, the one end of heating pipe pass through the bolt with the ring flange the bolt hole connection of the export of governing valve.

As a further improvement of the present invention, the air outlet holes include a first air outlet hole and a second air outlet hole;

the front half section of each distribution pipe is annularly distributed with a plurality of first air outlet holes which incline backwards along the axial direction of the pipeline, the rear half section is annularly distributed with a plurality of second air outlet holes which incline forwards along the axial direction of the pipeline,

steam enters the heating pipe through the first air outlet and the second air outlet to heat the percolate.

As a further improvement of the invention, a hollow interlayer is arranged in the buffer tube, the hollow interlayer is connected with the regulating valve through a bypass pipeline, and a second air outlet which inclines forwards is arranged in the hollow interlayer;

and a second check valve and a second steam manual ball valve are arranged on the bypass pipeline, and steam passes through the regulating valve, the second steam manual ball valve and the second check valve and then enters the hollow interlayer of the buffer tube.

As a further improvement of the present invention, the aperture of each of the first air outlet and the second air outlet is not smaller than 3mm, and the aperture of the third air outlet is not smaller than 6 mm;

the inclination angles of the first air outlet hole, the second air outlet hole and the third air outlet hole are not less than 30 degrees.

As a further improvement of the invention, the steam supply device is connected with the regulating valve through a steam supply pipeline;

the steam supply pipeline is followed steam supply device arrives the governing valve direction is equipped with the manual ball valve of first steam, the electronic ball valve of steam, steam thermometer, steam manometer and first check valve in proper order.

As a further development of the invention, the percolate supply device is connected to the heating pipe via a percolate supply line;

the percolate supply pipeline is sequentially provided with a percolate inlet pneumatic knife gate valve, a percolate inlet manual knife gate valve, a percolate inlet pressure gauge, a percolate inlet temperature gauge and a second check valve along the direction from the percolate supply device to the heating pipe.

As a further improvement of the invention, the device also comprises a controller and a temperature sensor;

the temperature sensor is arranged on an outlet pipeline of the buffer tube, the input end of the controller is connected with the temperature sensor, and the output end of the controller is connected with the regulating valve;

the lower limit value of the temperature sensor is not lower than 60 ℃, and the upper limit value of the temperature sensor is not higher than 80 ℃.

As a further development of the invention, the regulating valve is an electric regulating valve.

As a further improvement of the invention, a manual knife valve of a percolate outlet, a pneumatic knife gate valve of the percolate outlet, a percolate outlet pressure gauge and a percolate outlet temperature gauge are sequentially arranged on the outlet pipeline of the buffer tube.

Compared with the prior art, the invention has the beneficial effects that:

according to the kitchen waste leachate heating device, the distribution pipe is axially and annularly provided with the plurality of air outlet holes which are inclined forwards and backwards, the kitchen leachate enters the heating pipe from the lower part of the heating pipe and is vertically arranged with the distribution pipe, so that high-temperature steam from the steam supply device forms a large amount of turbulence in the heating pipe, the steam and the leachate can be fully mixed in the heating pipe, the heating speed of materials is increased, and the heating efficiency of the kitchen waste leachate is improved;

the tail part of the heating pipe is provided with the buffer pipe, and the buffer pipe is arranged to form a buffer area for the leachate heated at high temperature, so that the vibration of the pipeline is reduced, and the service life of the pipeline is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of a pipeline heating device for kitchen waste leachate, which is disclosed by the invention;

FIG. 2 is a schematic structural diagram of a distributor of a pipeline heating device for kitchen waste leachate, which is disclosed by the invention;

FIG. 3 is a schematic structural diagram of a distributing pipe of the pipe heating device for kitchen waste leachate disclosed in the present invention;

FIG. 4 is a schematic structural view of a heating pipe of the pipeline heating device for kitchen waste leachate disclosed in the present invention;

FIG. 5 is a schematic structural diagram of a buffer tube of the pipeline heating device for kitchen waste leachate according to the present invention;

fig. 6 is a schematic structural view of a bypass pipeline of the pipeline heating device for kitchen waste leachate disclosed by the invention.

In the figure:

1. adjusting a valve; 2. heating a tube; 2-1, a convex pipe; 3. a buffer tube; 3-1, a first pipeline; 3-2, a second pipeline; 3-3 connecting holes of the bypass pipe; 4. a controller; 5. a temperature sensor; 6. a flange plate; 7. a distribution pipe; 8. a steam electric ball valve; 9-1, a first steam manual ball valve; 9-2, a second steam manual ball valve; 10-1, a first check valve; 10-2, a second check valve; 10-3, a third check valve; 11-1, a percolate inlet pneumatic knife gate valve; 11-2, a pneumatic knife gate valve at the percolate outlet; 12-1, a manual knife gate valve of a percolate inlet; 12-2, a manual knife gate valve at a percolate outlet; 13-1, a steam pressure gauge; 13-2, a leachate inlet pressure gauge; 13-3, a leachate outlet pressure gauge; 14-1, a steam thermometer; 14-2, a leachate inlet temperature meter; 14-3, a leachate outlet temperature meter; 15. a percolate supply line; 16. a steam supply line; 17. a bypass line; 18-1, a first air outlet; 18-2, a second air outlet; 18-3 and a third air outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "left", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention is described in further detail below with reference to the attached drawing figures:

as shown in fig. 1, the invention discloses a pipeline heating device for kitchen waste leachate, which comprises a distributor, a regulating valve 1 and a heating pipe 2; the distributor comprises a plurality of horizontally arranged distribution pipes 7, one ends of the distribution pipes 7 are connected with the outlet of the regulating valve 1 through connecting pieces, the other ends of the distribution pipes are arranged in the heating pipe 2, and the inlet of the regulating valve 1 is connected with the steam supply device; one end of the heating pipe 2 is connected with the connecting piece, the other end is connected with the buffer pipe 3, and the lower part of the heating pipe 2 is connected with the percolate supply device; the front half section of each distribution pipe 7 is annularly provided with a plurality of backward inclined first air outlet holes 18-1 along the axial direction of the pipeline, the rear half section is annularly provided with a plurality of forward inclined second air outlet holes 18-2 along the axial direction of the pipeline, and steam enters the heating pipe 2 through the first air outlet holes 18-1 and the second air outlet holes 18-2 to heat the percolate.

According to the kitchen waste leachate treatment device, the front half section of each distribution pipe 7 is annularly provided with the plurality of backward inclined first air outlet holes 18-1 along the axial direction of the pipeline, the rear half section of each distribution pipe 7 is annularly provided with the plurality of forward inclined second air outlet holes 18-2 along the axial direction of the pipeline, kitchen leachate enters the heating pipe 2 from the lower part of the heating pipe 2 and is vertically arranged with the distribution pipe 7, so that high-temperature steam from the steam supply device forms a large amount of turbulence in the heating pipe 2, the steam and the leachate can be fully mixed in the heating pipe 2, the temperature rise speed of materials is accelerated, and the heating efficiency of the kitchen waste leachate is improved.

Specifically, the method comprises the following steps:

as shown in fig. 2, the connector of the present invention includes a flange 6, a plurality of holes reserved for connection with the distribution pipe 7 are arranged in a cross pattern in the middle of the flange 6, and a plurality of bolt holes are symmetrically arranged on the outer edge of the flange 6. One end of each of the distribution pipes 7 is fixedly connected with a reserved hole of the flange plate 6, the distribution pipes are preferably welded, the other end of each of the distribution pipes 7 is in a plugging design and is arranged in the heating pipe 2, and one end of the heating pipe 2 is connected with the flange plate 6 and the bolt hole of the outlet of the regulating valve 1 through bolts. The thickness of the flange 6 according to the invention is not less than 30mm, preferably 30 mm.

Further, as shown in fig. 3, the plurality of distribution pipes 7 of the present invention are circumferentially provided with a plurality of first air outlet holes 18-1 inclined forward and backward along the axial direction of the pipe, and the first air outlet holes 18-1 are circumferentially distributed on the distribution pipe 7, wherein the first air outlet holes 18-1 on the front half section of the distribution pipe 7 close to the flange 6 are inclined backward along the axial direction of the pipe, so that the steam in the front half section of the distribution pipe 7 is injected to the rear side in the heating pipe 2, and the second air outlet holes 18-2 on the rear half section are inclined forward, so that the steam in the rear half section of the distribution pipe 7 is injected forward in the heating pipe. Because the inclined directions of the air outlets of the front and rear half sections of the distribution pipe 7 are arranged oppositely, a large amount of turbulence is formed after the air enters the heating pipe 2 from the distribution pipe 7 to promote the mixing of the leakage liquid and the high-temperature steam.

Further, the diameter of each distribution pipe 7 of the present invention is not less than 25mm, preferably 25mm in the present invention, the diameter of each first air outlet 18-1 is not less than 3mm, preferably 3mm in the present invention, the forward and backward inclination angle of the first air outlet 18-1 is not less than 30 °, preferably 30 ° in the present invention, the interval between two adjacent first air outlets 18-1 is not less than 9mm, and preferably 9mm in the interval between two adjacent first air outlets 18-1 in the present invention.

As shown in fig. 4-5, one end of the heating pipe 2 of the invention is connected with the flange 6 and the outlet of the regulating valve 1 through bolts, the other end is fixedly connected with the buffer pipe 3, the invention is preferably welded in the fixed connection, the bottom of the heating pipe 2 is provided with a convex pipe 2-1 connected with a percolate supply pipeline 15, one end of the convex pipe 2-1 is perpendicular to the heating pipe 2 and is fixedly connected with the heating pipe 2, the invention is preferably welded in the fixed connection, the other end of the convex pipe 2-1 is welded with a flange, the percolate supply pipeline 15 is connected with the flange of the convex pipe 2-1 through bolts, the convex pipe 2-1 of the invention is perpendicular to the distribution pipe 7, so that after steam enters the heating pipe 2, the inner circumference flow field of the heating pipe 2 forms a large amount of turbulence to fully mix the steam and the percolate, thereby improving the heating efficiency of the percolate.

Furthermore, the pipe diameter of the heating pipe 2 of the invention is preferably 133mm, the pipe diameter of the convex pipe 2-1 with the thickness not less than 3mm is preferably 76mm, the thickness is not less than 3mm, and the thickness of the heating pipe 2 and the convex pipe 2-1 of the invention is preferably 3 mm.

As shown in FIGS. 5-6, the buffer tube of the invention comprises a first pipeline 3-1 and a second pipeline 3-2, wherein the first pipeline 3-1 is arranged in the second pipeline 3-2, one end of the first pipeline and one end of the second pipeline are welded together through a flange, a hollow sandwich structure is formed between the welded first pipeline 3-1 and the second pipeline 3-2, a bypass pipe connecting hole 3-3 for connecting a bypass pipeline 17 is arranged on the second pipeline 3-2, and a third air outlet hole 18-3 for steam heating is also arranged on the first pipeline; one end of a bypass pipeline 17 is fixedly connected with a bypass pipeline connecting hole 3-3, the fixed connection of the invention is preferably welded, the other end of the bypass pipeline is connected with the side wall of a regulating valve 1, a second steam manual ball valve 9-2 and a third check valve 10-3 are sequentially arranged on the bypass pipeline 17 along the direction from the regulating valve 1 to a buffer tube 3, when the materials in the buffer tube 3 are condensed due to low external temperature, high-temperature steam can be directly supplied into a hollow interlayer of the buffer tube after passing through the regulating valve by opening the second steam manual ball valve 9-2, the high-temperature steam enters the first pipeline 3 through a third air outlet hole 18-3 to heat the infiltration filtrate in the buffer tube 3, the heating efficiency of the percolate due to the condensation of the percolate materials is avoided, and the setting of the buffer tube 3 also forms a buffer area for the heated percolate materials, the pipeline vibration is reduced, and the service life of the pipeline is prolonged.

Further, the pipe diameter of the first pipeline 3-1 is preferably 89mm, the wall thickness is preferably 3mm, the pipe diameter of the second pipeline 3-2 is preferably 108mm, the wall thickness is preferably 4mm, the pipe diameter of the bypass pipeline 17 is preferably 25mm, and the hole diameter of the bypass pipe connecting hole 3-3 is preferably 25 mm.

Further, the aperture of the third outlet 18-3 of the present invention is not less than 6mm, preferably 6mm in the present invention, and the inclination angle of the third outlet 18-3 of the present invention is not less than 30 °, preferably 30 ° in the present invention.

As shown in figure 1, the steam supply device of the invention is connected with the regulating valve 1 through a steam supply pipeline 16, the steam supply pipeline 16 is provided with a first manual steam ball valve 9-1, a steam electric ball valve 8, a steam temperature gauge 14-1, a steam pressure gauge 13-1 and a first check valve 10-1 in sequence from the steam supply device to the regulating valve 1, the temperature of saturated steam provided by the steam supply device of the invention is preferably 143.5 ℃, and the pressure is preferably 0.4 MPa.

Furthermore, the leakage liquid supply device is connected with the heating pipe 2 through a leakage liquid supply pipeline 15, and the leakage liquid supply pipeline 15 is sequentially provided with a leakage liquid inlet pneumatic knife gate valve 11-1, a leakage liquid inlet manual knife gate valve 12-1, a leakage liquid inlet pressure gauge 13-2, a leakage liquid inlet temperature gauge 14-2 and a second check valve 10-2 along the direction from the leakage liquid supply device to the heating pipe.

Furthermore, a temperature sensor 5, a manual knife gate valve 12-2 at a percolate outlet, a pneumatic knife gate valve 11-2 at the percolate outlet, a percolate outlet pressure gauge 13-3 and a percolate outlet temperature gauge 14-3 are sequentially arranged on an outlet pipeline of the buffer tube 3. The lower limit value of the temperature sensor is not lower than 60 ℃, and the upper limit value of the temperature sensor is not higher than 80 ℃.

According to the invention, the arrangement of the first steam manual ball valve 9-1 and the steam electric ball valve 8 on the steam air supply pipeline 16, the arrangement of the leachate inlet pneumatic knife gate valve 11-1 and the leachate inlet manual knife gate valve 12-1 on the leachate supply pipeline 15, the arrangement of the leachate outlet manual knife gate valve 12-2 and the leachate outlet pneumatic knife gate valve 11-2 on the outlet pipeline of the buffer tube 3 ensure that when the electric ball valve or the pneumatic knife gate valve is damaged, the corresponding manual valve on the pipeline can be closed, the electric ball valve or the pneumatic knife gate valve can be replaced, the overhauling efficiency is improved, and the personal safety of an overhauling worker in the overhauling process is ensured.

Further, the invention also comprises a controller 4, wherein the input end of the controller 4 is connected with the temperature sensor 5 and the control button, the output end of the controller 4 is connected with the regulating valve 1, the steam electric ball valve 8, the leachate inlet pneumatic knife gate valve 11-1 and the leachate outlet pneumatic knife gate valve 11-2, the regulating valve 1 is preferably an electric regulating valve, and the controller 4 controls the opening size of the electric regulating valve according to the monitoring temperature value of the temperature sensor 5, so that the flow of steam flowing into the distributor is controlled, and the heating efficiency of the leachate is further controlled.

The application method of the embodiment comprises the following steps:

1) and an initial state: the regulating valve 1, the steam electric ball valve 8, the percolate inlet pneumatic knife gate valve 11-1 and the percolate outlet pneumatic knife gate valve 11-2 are all in a closed state; the electric regulating valve, the first steam manual ball valve 9-1, the manual knife gate valve 12-1 at the percolate inlet and the manual knife gate valve 12-2 at the percolate outlet are in an open state;

2) and a heating state: an operator presses a control button, the controller 4 sequentially controls the steam electric ball valve 8, the electric regulating valve, the percolate outlet pneumatic knife gate valve 11-2 and the percolate inlet pneumatic knife gate valve 11-1 to be opened, so that high-temperature steam enters the heating pipe 2 through the steam air supply pipeline 16, the electric regulating valve and the distribution pipe 7, and percolate enters the heating pipe through the percolate supply pipeline 15 to start to heat the percolate;

3) the leachate heated by the heating pipe 2 passes through the buffer pipe 3 and is conveyed to an outlet pipeline of the buffer pipe 3, at the moment, the temperature sensor 5 monitors the temperature value of the leachate at the outlet in real time, when the temperature value of the leachate at the outlet is lower than a set lower limit value by 60 ℃, the controller 4 controls the electric regulating valve to increase the high-temperature steam conveying capacity, and when the temperature value of the leachate at the outlet is higher than a set upper limit value by 80 ℃, the controller 4 controls the electric regulating valve to decrease the high-temperature steam conveying capacity;

4) when the external temperature is too low and the leachate in the buffer tube 3 is condensed, an operator manually opens the second steam manual air valve 9-2, so that the high-temperature steam flowing through the electric regulating valve reaches the hollow interlayer of the buffer tube 3 through the bypass pipeline 17, and the condensed material in the buffer tube 3 is secondarily heated through the third air outlet 18-3;

5) in the heating process, an operator can timely master the temperature conditions of the supplied high-temperature steam and the percolate from a steam pressure gauge 13-1, a percolate inlet pressure gauge 13-2, a percolate outlet pressure gauge 13-3, a steam temperature gauge 14-1, a percolate inlet temperature gauge 14-2 and a percolate outlet temperature gauge 14-2, and timely adjust the production mode;

6) and the heated leachate passes through an outlet pipeline of the buffer tube 3 and then enters the next working procedure.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.